Used B Fubuki playing against my friend who mains Arakune today as Killey suggested earlier, and it worked fantastic. My friend was sent immediately flying to a corner and I was able to heavily pressure him and keep his Arakune under control. Also, a alternative for when Arakune is trying to curse you is to send a slow projectile on the ground at him. Depending on the player, they'll either block or try to dodge the projectile. My friend would jump in the air and come towards me if I did that. So, I would either use B Fubuki when he approached my side, or, jump in the air and do a quick slash at him. This tactic forces the Arakune to get in the air and to most likely dash towards your side. On another note...
2B worked quite well at times too. When Arakune does 3C I believe it is... The move where he goes into the ground and moves a certain distance. 2D would at the right distance always be able to get my friend when he tried that move. Usually once I froze him, I would use 6/4C spam. Yeah, I'm a real pro aren't I?(Need to learn combos badly lol)